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Re: Swiss Ephemeris Public License

On Tue, Oct 14, 2003 at 05:19:06AM -0400, Anthony DeRobertis wrote:
> On Tue, 2003-10-14 at 04:45, Edmund GRIMLEY EVANS wrote:
> >You seem to be saying that A and C are DFSG-free, but B isn't. So
> >something released with license A is free, but software dual-licensed
> >with A and B is non-free. I seem to be seeing or imagining some kind
> >of paradox here ...
> Given:
>         A := BSD to all
>         B := BSD to few, GPL rest
>         C := GPL to all
>         A => free
>         C => free
> Now, "Dual licensed under A and B" means "A OR B", so we can conclude:
>         A OR B => free
>         C OR B => free
> However, without further "givens", we can logically conclude *nothing*
> about B.
> I think the apparent paradox is coming from confusing "dual license" to
> mean "AND" instead of "OR".

Thanks for expressing this so clearly.

G. Branden Robinson                |
Debian GNU/Linux                   |    Yeah, that's what Jesus would do.
branden@debian.org                 |    Jesus would bomb Afghanistan. Yeah.
http://people.debian.org/~branden/ |

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